NL238268A - - Google Patents

Info

Publication number
NL238268A
NL238268A NL238268DA NL238268A NL 238268 A NL238268 A NL 238268A NL 238268D A NL238268D A NL 238268DA NL 238268 A NL238268 A NL 238268A
Authority
NL
Netherlands
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL238268A publication Critical patent/NL238268A/xx
Priority claimed from US734569A external-priority patent/US2973447A/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/30Vessels; Containers
    • H01J61/33Special shape of cross-section, e.g. for producing cool spot
NL238268D 1958-04-18 NL238268A (en:Method)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US729425A US2965789A (en) 1958-04-18 1958-04-18 Vapor pressure control in discharge lamps
US73451158A 1958-05-12 1958-05-12
US734569A US2973447A (en) 1958-05-12 1958-05-12 Grooved lamp vapor pressure control

Publications (1)

Publication Number Publication Date
NL238268A true NL238268A (en:Method)

Family

ID=27419131

Family Applications (1)

Application Number Title Priority Date Filing Date
NL238268D NL238268A (en:Method) 1958-04-18

Country Status (5)

Country Link
US (1) US2965789A (en:Method)
DE (1) DE1123047B (en:Method)
FR (2) FR75582E (en:Method)
GB (1) GB929618A (en:Method)
NL (1) NL238268A (en:Method)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121183A (en) * 1960-08-31 1964-02-11 Duro Test Corp Fluorescent lamp
US3331977A (en) * 1965-03-15 1967-07-18 Westinghouse Electric Corp High output discharge lamp with vapor pressure control means
FR2108916B1 (en:Method) * 1970-10-13 1973-11-30 Gerland Ste Chimique
JPS6276149A (ja) * 1985-09-28 1987-04-08 Toshiba Corp けい光ランプ装置
US7276853B2 (en) 2002-04-11 2007-10-02 Koninklijke Philips Electronics, N.V. Low-pressure mercury vapor discharge lamp
WO2003085695A2 (en) * 2002-04-11 2003-10-16 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp
DE10391495D2 (de) * 2002-04-17 2005-02-24 Continental Teves Ag & Co Ohg Verfahren zur Erkennung von Reifeneigenschaften
EP1579473A2 (en) * 2002-10-04 2005-09-28 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020726A (en) * 1932-10-01 1935-11-12 Gen Electric Gaseous electric discharge device
US2213245A (en) * 1935-12-23 1940-09-03 Germer Edmund Electrical discharge device
FR802714A (fr) * 1936-02-12 1936-09-14 Perfectionnements aux tubes luminescents
US2190009A (en) * 1937-05-22 1940-02-13 Boucher Inv S Ltd Luminescent tube and system
FR861799A (fr) * 1938-11-26 1941-02-17 Lampes Sa Perfectionnements aux dispositifs à décharge lumineuse
US2317265A (en) * 1940-07-26 1943-04-20 Foerste William Fluorescent lamp
ES173962A1 (es) * 1944-12-21 1946-07-16 The General Electric Company Ltd Una lámpara de descarga eléctrica
DE1050443B (en:Method) * 1954-12-14
AT199750B (de) * 1954-12-14 1958-09-25 Gen Electric Entladungslampe

Also Published As

Publication number Publication date
US2965789A (en) 1960-12-20
FR75708E (fr) 1961-08-04
DE1123047B (de) 1962-02-01
FR75582E (fr) 1961-07-17
GB929618A (en) 1963-06-26

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